Results 1 to 9 of 9
  1. #1
    Join Date
    Dec 2003
    Location
    here
    Posts
    2,135

    Electronic Geeks

    We've got a dead Bose Wave AWRC-1G... left on the porch, caught some rain, dried out and still nothing, not a sound, not a crackle, not a light. It's been sitting for a year now. I've been looking for projects, being on an injured list, and figured "I got this.."

    First I thought for sure it would be the internal fuse, and even ordered one before checking... but that checks out as being goodaccording toa multimeter which I discovered I actually had...

    I cleaned the circuit board with vinegar..maybe need to clean again but it looks ok...read about using baking power also..

    I checked the "Billion" transformer #193372. ...the service manual specs found online for this Bose reads like a foreign language....total electronic geek shit....can anyone just tell me what voltage I should be reading at the output leads of this transformer??

    Of the 3 pairs of wires, purple, blue, and black I get 5.3V, 11.6V, and 21.6V respectively

    Another test (and the reason I'm not confident that the transformer is good)was to disconnect the transformer entirely and check the lead pairs in the ohms setting and got 3 ohms, plus or minus, on all but the pair that had produced 21.6 volts (the black pair)....on that pairthe reading was 12.6 ohms.....I read in a search somewhere that a transformer ( I think this wasin general my eyes and mind were going batty from all the searches ) shouldn't read anything over 10 ohms when using that kind of test...I could have misinterpreted this.

    Yet another testdone in the ohms setting (which maybe I should not havedone, and may have misinterpreted the method), is I kept the transformer pluggedto it's AC voltage jackbut disconnected the outgoingleads.....there was areduction in power the same as before of plus or minus 3 ohms, EXCEPT for the leads that in the other test that gave out the 21.6 volts.....in this test the reading was a negative number of -20 or something like that..and I think the meter was blinking and shit..

    I don't want to buy a $30 transformer if not necessary...throwing parts at it till the problem found scenario...

    Any geeks here do this stuff??

    if it helps I can post the service manual so you can geek out for real..

    many thanks
    If it weren't for serendipity, there'd be no dipity at all

  2. #2
    Join Date
    Oct 2006
    Posts
    188
    Been there, done that. I messed around with a Bose system that wasnt working, bought random parts online, went into a Bose store, talked w their online tech reps...all to result in a failure. Finally gave up and sent the thing into Bose repair. If I remember they charge a flat fee, a month later it was shipped back, working perfectly.

    If I had to do it again, Id just send it in from the start.

  3. #3
    Join Date
    Jan 2009
    Posts
    732
    you were measuring resistance on the secondary coils, with the primary powered on or just plugged into the board? pic would help

  4. #4
    Join Date
    Dec 2003
    Location
    here
    Posts
    2,135
    the primary was powered on when I got the - 20 number in the ohms scale....in case it's not clear, I don't know what I'm doing but learn faster by doing dumb shit..

    Click image for larger version. 

Name:	IMG_3836[1].jpg 
Views:	41 
Size:	1.45 MB 
ID:	281232



    Click image for larger version. 

Name:	IMG_3840[1].jpg 
Views:	41 
Size:	1.18 MB 
ID:	281234


    and I hear ya, habituallybored guy ...def out of my league here but refuse to believe it's magic...until I give up
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	IMG_3844[1].jpg 
Views:	40 
Size:	1.30 MB 
ID:	281233  
    If it weren't for serendipity, there'd be no dipity at all

  5. #5
    Join Date
    Jan 2009
    Posts
    732
    so we dont do ohms on lines with voltage.

    we DO want to use the ohms test to determine if the primary is shorted to any of the secondary, so one probe on either 110v/primary line and the other probe on all 8 secondaries. we want over limit or infinite or its shorted.

  6. #6
    Join Date
    Dec 2003
    Location
    here
    Posts
    2,135
    [QUOTE=Todd Zander;5664530]so we dont do ohms on lines with voltage.

    QUOTE]
    exactly...this is the dumb shit I was talking about..

    thanks for taking an interest, I'll be back..... :-)
    If it weren't for serendipity, there'd be no dipity at all

  7. #7
    Join Date
    Dec 2007
    Location
    base of the Bush
    Posts
    10,684
    Dude? You ok? Do I need to call Sprite?
    www.apriliaforum.com

    "If the road You followed brought you to this,of what use was the road"?

    "I have no idea what I am talking about but would be happy to share my biased opinions as fact on the matter. "
    Ottime

  8. #8
    Join Date
    Dec 2003
    Location
    here
    Posts
    2,135
    Quote Originally Posted by Vt-Freeheel View Post
    Dude? You ok? Do I need to call Sprite?
    I'm working on my ohms, bitch..
    this thing is going back in the line up....excellent base out of these things
    (I'd blame the oxys but I've run out)
    If it weren't for serendipity, there'd be no dipity at all

  9. #9
    Join Date
    Dec 2007
    Location
    base of the Bush
    Posts
    10,684
    Carry on
    www.apriliaforum.com

    "If the road You followed brought you to this,of what use was the road"?

    "I have no idea what I am talking about but would be happy to share my biased opinions as fact on the matter. "
    Ottime

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •